The Influence of Nonstoichiometry on the Electronic Structure of Li 1+xCoO2 (0 < x ≤ 0.1) Superstoichiometric Oxides Научная публикация
Журнал |
Russian Journal of Physical Chemistry A
ISSN: 0036-0244 , E-ISSN: 1531-863X |
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Вых. Данные | Год: 2003, Том: 77, Номер: 8, Страницы: 1319-1323 Страниц : 5 | ||||||
Ключевые слова | cobalt derivative; lithium derivative; nonstoichiometric compound; oxide; oxygen derivative | ||||||
Авторы |
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Организации |
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Реферат:
Li1+xCoO2 (0 less than or equal to x less than or equal to 0.1) samples prepared by the traditional ceramic technique were studied by X-ray diffraction, IR spectroscopy, X-ray photoelectron spectroscopy, diffuse reflectance electron spectroscopy, and magnetic measurements. The superstoichiometric oxides had a uniform crystal structure with statistically distributed vacancies in cobalt layers and an enhanced covalence of Co-O bonds. Excess lithium caused the appearance of a new oxygen state (O-) different from the oxide state (O2-) rather than the reduction of Co3+ ions to Co2+. The appearance of oxygen ions with an unusually low electron density was directly related to the formation of oxygen positions with a decreased coordination number; the magnetic properties of Li1+xCoO2 were governed by exchange-coupled (Co3+-O-) pairs.
Библиографическая ссылка:
Kaichev V.V.
, Kosova N.V.
, Devyatkina E.T.
, Bukhtiyarov V.I.
, Kellerman D.G.
The Influence of Nonstoichiometry on the Electronic Structure of Li 1+xCoO2 (0 < x ≤ 0.1) Superstoichiometric Oxides
Russian Journal of Physical Chemistry A. 2003. V.77. N8. P.1319-1323. WOS Scopus РИНЦ
The Influence of Nonstoichiometry on the Electronic Structure of Li 1+xCoO2 (0 < x ≤ 0.1) Superstoichiometric Oxides
Russian Journal of Physical Chemistry A. 2003. V.77. N8. P.1319-1323. WOS Scopus РИНЦ
Оригинальная версия:
Каичев В.В.
, Косова Н.В.
, Девяткина Е.Т.
, Бухтияров В.И.
, Келлерман Д.Г.
Влияние нестехиометрии на электронное строение сверхстехиометрических оксидов Li 1+xCoO 2 (0 < х < 0.1)
Журнал физической химии. 2003. Т.77. №8. С.1472-1477. РИНЦ
Влияние нестехиометрии на электронное строение сверхстехиометрических оксидов Li 1+xCoO 2 (0 < х < 0.1)
Журнал физической химии. 2003. Т.77. №8. С.1472-1477. РИНЦ
Даты:
Поступила в редакцию: | 15 окт. 2002 г. |
Опубликована в печати: | 1 авг. 2003 г. |
Идентификаторы БД:
Web of science | WOS:000184702700019 |
Scopus | 2-s2.0-0141852071 |
РИНЦ | 13435553 |
Цитирование в БД:
Пока нет цитирований